US Bridges

ST116 over Water Mill River

Fair

Hampshire County, Massachusetts · .9 M S Sund-Amherst T.L. · Structure no. A080260VBDOTNBI

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
13,610
2023 count
Owner
State
State Highway Agency

About this bridge

ST116 over Water Mill River is a concrete continuous culvert carrying ST116 over Water Mill River in Hampshire County, Massachusetts. It was built in 1958, so it is 67 years old, older than the Massachusetts average of 63.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 13,610 vehicles a day, roughly 2% of them trucks, projected to reach 17,372 by 2031. The structure is 71 ft (21.6 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesST116
CrossesWater Mill River
Location.9 M S Sund-Amherst T.L.
RouteState Highway 116
Coordinates42.41502, -72.53716
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length71 ft (21.6 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,610 (2023)
Projected traffic17,372 by 2031
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.9 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ST116 over Water Mill River built?

It was built in 1958, making it 67 years old in 2025.

What condition is ST116 over Water Mill River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does ST116 over Water Mill River carry?

About 13,610 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is ST116 over Water Mill River?

The structure is 71 ft (21.6 m) long with a longest span of 23 ft (7 m).

Who owns ST116 over Water Mill River?

It is owned by the State Highway Agency.